Device for setting and protecting diamond-edged tools and the like



W. WINTER July 2, 1935.

DEVICE FOR SETTING AND PROTECTING DIAMOND EDGED TOOLS AND THE LIKE Filed Aug. 31, 1932 Patented July 2, 1935 I UNiTED STATES PATENT orator.

DEVICE FOR SETTING AND. PROTECTING DIAMOND-EDGED TOOLS AND THE LIKE Wilhelm Winter,.Hamburg, Germany Application August 31, 1932, Serial No. 631,291 In Germany September 19, 1931 15 Claims. (Cl. 33-485) This invention relates to a device for carrying The tool can then be brought up to the work out the vertical and lateral, setting and also for and the cutting operation commenced. In other the protection of the cutting-edge of hard tools words, applicants device is mounted upon the in the case of the employment of a setting-plate ool by mea o t large thumb-Screw The situated on the tool-holder at the height of the tool is then adjusted with respect to the work 5 cutting-edge and in front of the latter. and the device is then removed so that the tool The invention has as one of its objects the is free to cut the work. v exact vertical and lateral setting of the cutting- In order that the sett ng-p y be able edge opposite the work to be operated upon, to follow all possible adjustments of the tool, which for hard tools, for example, diamond a special clamping device is provided by the use 10, tools, is of very special importance, because of which the setting-P can be fastened their output and durability are dependent to directly 0n t e hard 17001- The Clamping device a high degree on the very exact observance of is provided in special cases with means by the the setting. aid of which the distance of the boundary-edge A setting which often deviates from the exor front ofthe setting plate from the hard out- 15 actly correct setting only by an amount not t ng-ed c be Set. perceptible to the naked eye, frequently causes Now in order to be able to obtain the most acinjury to the cutting-edge subjected to strains curate agreement of the boundary- 0f e up to the breaking point, as those skilled in setting plate and the front boundary of e a d the art understand. tool, a special construction is provided. The-doe 20 In the case of diamond tools the adjustment in vice consists of the pla e Which Preferably height has hitherto been effected by setting a transparent and limited substantially by the exmarking-tool, mark-scraper, or droppoint at tended lateral setting edge, which carries a linthe height of a certain part of the machinecal and angle scale. The lateral setting edge is tool, for example, at the height of the lathedirected parallel to the thread ofa cross thread 25 centre. After this marking-tool has been set, of an optical instrument and the optical instru- 1 the cutting-edge is brought to the correct height ment is so arranged that the cutting edges (facas indicated by said marking-tool by means of ets) ofthe hard tool can be observed by means packing. When employing this method however of it in a manner well known to those skilled in the sensitive cutting-edges are very often inthe art. V 30 jured by contact with the marking-tool. In general the movement of. the tool with According to the present invention these spethe plate up to the 'WOlk sufiices for accurate cial conditions for hard tools are accommodated setting. Also each edge of the plate may from and a device is provided with a setting-plate the start be arranged displaced by such an. 5 having its front border or boundary-line corree amount that on bringing a plate-edge parallel to spending to an enlargement to a very enlarged the work the diamond cutting-edge already. is scale of the cutting edges of the hard cutting set at its correct angle. If consequently, for body. The device likewise surrounds the hard example, the work is a cylindrical shaft and if cutting body and acts as a protection against the plateefacet be placed suitably againstv the" 40 injury. In cases in which even the enlarged work the correct setting of thencutting-edge 0 front border or edge is not sufficient for the acwould result. curate setting, according to the invention, an Several embodiments of the present invention, extended setting plate is provided by the use in which embodiments a diamond turning tool of which the setting is easily effected. Such an is employed, are illustrated by Way of example in 45, extension or extended setting plate may be fasthe accompanying drawing in which:-- 4o.

tened detachably and may be turned or other- I Figs. 1 and 2 are a plan and side elevation wise set according to the angle which the respectively of a diamond turning tool;

diamond edge is intended to form with the work. Figs. 3 and 4.- likewise a plan and side eleva- It will be observed that the device is mounted tion respectively of the same diamond turningupon the front of a tool preparatory to setting tool with a setting and protective device mountthe same with respect to the work in a lathe ed thereon;

or the like. Of course, after the tool has been Fig. 5 is a front elevation of the setting and adjusted so that the diamond point is arranged protective device; I properly in relation to the work, applicants Figs..6 and '7 are a side elevation and plan of 5 device is removed fromthe front of the tool. anotherembodiment of the invention. 5

Figs. 8 and 9 a side elevation and plan of a further embodiment of the invention;

Fig. 10 shows a construction of the edge extension piece;

Fig. 11 shows in side elevation the application of the invention in the case of a hard tool having a circular transverse cross-section;

Fig. 12 a plan corresponding to Fig. 11, and Fig. 13 a front elevation corresponding to Fig. 11.

In the case of the construction according to Figs. 1-5 a diamond a is secured on the holder 2) in a well-known manner with the aid of a clamping piece d, a fitting plate 0, situated between said holder b and clamping piece d, and screw e.

The setting device consists in the case of the illustrative example, of a cover 1, which fits accurately over the clamping plate (1 and which can be fixed with the aid of a screw g. On the undersidevof this cover f there is fastened by means of screws h the setting plate 2', which consists, of sheet steel, celluloid or other suitable material. The front boundary line k of the plate 2 is an enlargement to a highly enlarged scale of the cutting edges of the diamond. The plate 1 is provided with a recess m into which the diamond projects. In order to protect the diamond edges from injuries from above, a protective plate (see Figs. 8, 9, ll, 12 and i3) is arranged over the recess m. In order to be able to set, or to limit, the distance of the front part of the plate 2' from the diamond, there is provided on the cover 1 a screw it the point of which abuts against the front of clamping plate d and forms a stop.

In the case of the embodiment of the invention illustrated in Figs. 6 and 7 a magnifying glass 0 is provided with which the cover I is connected and on which the setting-plate i is secured with the aid of a holder 1' (or the like). The setting-plate i is suitably provided with a scale of the type illustrated and is so set that on viewing coincidence between the diamond and the cross-thread or thread 5 in the magnifying glass, the front edge of the plate 2 gives the correct position of the cutting edge of the diamond. In order to be able exactly to set the small angle possibly necessary between the cutting edge and the work, the plate 1' (Fig. '7) may be provided with a graduated scale 15.

The lateral setting may also as is evident from Fig. 6, be effected by setting or turning the magnifying glass, the angle of deviation being able to be read off on a scale S, which is situated above a fixed pointer 7' (Fig. 6) on the magnifying glass 0.

In the case of the construction according to Figs. 8 and 9 there is fitted by means of a screw it arranged on the cover 1 and a nut v engaging said screw a member :1: provided with a slot 112 for the screw it. The edge y of member a: projects downwards as far as is desired and is arranged parallel to the corresponding settingedge of theplate i or if the plate 2' be absent, parallel to or at a definite angle to the diamond cutting-edge. Thus, this edge 1 not only provides protection for the setting plate 2', but can also be used as a substitute for this setting plate 2', since it is so constructed that its front edge can be adjusted to be parallel with the front edge of the setting plate 1'. A special slot .2 enables the diamond to be observed from above. With the aid of the member a: which can be set by being turned and shifted, the exact lateral setting of the cutting-edge may consequently in this case be eifected because the front edge y can be set to form any angle with the front edge-of the setting plate 1'.

In Fig. 10 a modification of the construction of the edge-extension is illustrated. In this case, a piece 2', similar to a ruler, is fastened to the plate 2 by means of a screw 2' in such a manner as to be capable of being rotated and of being displaced horizontally in a slot i of the plate.

In the case illustrated, the long edge of the piece 1" is adjusted to be parallel to the front part 1: of the boundary line of the plate 2 so as to increase its effective length.

The embodiment of the invention represented in Figs. 11 to 13 shows the application of the invention in the case of a holder b of round cross-section which carries the diamond a. In this case the clamping piece is formed as a cylindrical sleeve I which can be pushed on the holder 12 and which is fixed in position with the aid of the clamping-screw g and which is kept from rotating by means of a pin 9 which engages with its front end in a groove provided in the holder 12 The sleeve 1 is provided above with an observation-hole m The setting plate 2 is fixed on the sleeve f with the aid of screws 2' and a protective plate Z of mica or other transparent material is connected thereto. The plate I covers the diamond and protects it from injury, to which it might be liable on account of the existence of the observation-hole m What I claim is:

l. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a setting-member associated with said clamping device, said setting-member having a front boundary-line situated at the same height as the cutting edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond whereby the cutting-edge prevented from coming in contact with the work during the setting of the cutting-edge.

2. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in u relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a toolholder containing a cutting diamond, a settingmember associated with said clamping device and surrounding said cutting diamond, said setting-member having a front boundary-line situated at the same height as the cutting-edge of the diamond and having enlarged faces parallel to the, front facets of the cutting diamond, whereby the cutting-edge is prevented from coming in contact with the work during the setting of the cutting-edge.

3. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a plate associated with said clamping device, said plate having a front boundary-line situated at the same height as the cutting-edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond whereby the cutting-edge is prevented from coming in contact with the work during the setting of the cutting-edge.

4. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in-relation to the'work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a setting-member associated with said clamping device, said setting-member having a front boundary-line situated at the same height as the cutting edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond, said clamping device and plate surrounding the cutting edge of said diamond whereby the cutting-edge is prevented from coming in contact with the work during the setting of the cuttingedge.

5. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capableof being detachably mounted on a tool-holder containing a cutting diamond, a plate associated with said clamping device, having a front bounda ary-line situated at the same height as the cutting-edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond, said plate being provided with an extension piece capable of being fastened at any predetermined angle with relation to the enlarged faces so as to increase their effective length, whereby the cutting edge is prevented from coming in contact with the work during the setting of the cutting-edge.

6. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a plate associated with said clamping device having a front boundary-line situated at the same height as the cutting-edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond, said plate being provided with a displaceable and revoluble extension piece capable of being fastened at any predetermined angle with relation to the enlarged faces so as to increase their effective length whereby the cutting edge is prevented from coming in contact with the work during the setting of the cutting-edge.

'7. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a setting-member associated with said clamping device, said setting-member having a front boundary-line, situated at the same height as the cutting-edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond and a displaceable and revoluble separate boundary-edge extension member capable of being mounted on the tool-holder by means of the said setting member. I

8. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a setting-member associated with said clamping device, said setting-member having afront boundary-line situated at the same height as the cutting-edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond and a displaceable and revoluble separate boundary-edge extension member mounted on the clamping device, capable of being fastened at any predetermined angle with relation to the enlarged faces so as to increase their effective length whereby the cutting-edge is prevented from coming in contact with the work during the setting of the cutting-edge. v

9. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, said clamping device being in the form of a cover provided with a protective plate, a setting-member associated with said clamping device, said setting member having a front boundary-line situated at the same height as the cutting-edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond whereby the cutting-edge is prevented from coming in contact with the work during the setting of the cutting-edge.

10. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof comprising a clamping device capable of being detachably mounted on a tool-holder containing a cutting element, said clamping device being in the form of a cover provided with a protective plate and said cover having a clamping screw and a screw distance-adjustment stop, a settingmember associated with said clamping device, said setting-member having a front boundaryline situated at the same height as the cutting element and having faces parallel to the facets of the cutting element whereby the cutting-edge is prevented from coming in; contact with the work during the setting of the cutting-edge.

11. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting element, a transparent settingmember associated with said clamping device, said setting-member having a front boundaryline situated at the same height as the cutting element and having at least one face parallel to one facet of the cutting element whereby the cutting-edge is prevented from coming in contact with the work during the setting of the cutting-edge.

12. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a setting-member associated with said clamping device, said settingmember having a front boundary-line situated at the same height as the cutting-edge of the diamond and having at least one enlarged face parallel to the front facets of the cutting diamond and an optical magnifying instrument mounted on said clamping device, having cross threads in fixed relation to the setting member adapted to be adjusted so as to coincide with the cutting-edge of the diamond whereby the cutting-edge is prevented from coming in contact with the work during the setting of the cuttingedge.

13. A device for the exact vertical and lateral setting of the cutting-edge of hard-tools-in relation to the work and for the protection thereof which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a setting-member having a scale and being mounted on said clamping device, said setting-member having front boundary-lines situated at the same height as the cutting-edge and having at least one enlarged face parallel to the front facets of the cutting diamond, and an optical magnifying instrument mounted on said clamping device, having cross threads in fixed relation to the setting member adapted to be adjusted so as to coincide with the cutting-edge of the diamond whereby the cutting-edge is prevented from coming in contact with the Work during the setting of the cutting-edge 14. A device for the exact vertical and lateral setting of the cutting-edge of hard-to0ls in relation to the Work and for the protection thereof which comprises a clamping device in the form of a displaceable non-revoluble sleeve capable of being detachably mounted on a tool-holder containing a cutting diamond, a setting-member associated with said clamping device, said setting-member having a front boundary-line situated at the same height as the cutting-edge of the diamond and having enlarged faces parallel to the front facets of the cutting diamond whereby the cutting-edge is prevented from coming in contact with the Work during the setting of the cutting-edge.

15. A device for the exact vertical and lateral setting of the cutting-edge of hard tools in relation to the work and for protection thereof, which comprises a clamping device capable of being detachably mounted on a tool-holder containing a cutting diamond, a setting-member pivotably mounted on said clamping device, said setting-member having a front edge situated at the same height as and in front of the cuttingedge of the diamond, an optical instrument associated with said setting-member, said optical instrument having cross threads in fixed relation to the front edge of said setting member and adapted to coincide with the cutting-edge of the diamond whereby the front edge of said setting-member may be set at any predetermined 2 angle with relation to the said cutting-edge.

WILHELM WINTER. 

